短語詞組短語coal gas washing machine 煤氣洗滌機(jī)coal -washing control system 洗煤控制系統(tǒng)coal gas washing 煤氣洗滌coal gas washing cycling water 煤氣洗滌循環(huán)水Coal Washing Machines 洗煤機(jī) 返回 coal washing